|A jewelled morningstar, glowing brightly with the light of the dawn. It illuminates the dungeon's recesses, revealing the machinations of those who would prefer to stay invisible.|
Eos has a decent base type, an excellent enchantment level, and a powerful brand.
Note that, though the halo of the Corona provides a handy see invisible effect, it also drastically reduces your Stealth and makes you easier to be hit. Overall, it's a desirable weapon for low- and mid-level characters.
Tips & Tricks
When Stealth is at a premium (say, for lower-level characters entering a new level), unwield Eos when exploring, and wield you actually go into melee.